## TL;DR

Zoho Expense throws a workflow error when the approval chain is misconfigured: an approver role is empty, a user is deactivated, or a condition has no matching path. A Zoho admin must open the approval workflow, fill or fix the broken step, and then you resubmit the report.

## Error

```text
Zoho Expense: report approval workflow error
```

## Steps

1. Note exactly when the error appears: on submit, on approve, or on auto-forward. Expected: you know which workflow step is breaking.
2. Ask your Zoho Expense admin to open Settings, then Approval Workflows, and run the workflow in test mode for your report. Expected: the admin sees the step that fails.
3. The admin fixes the broken step: assign an approver where the role is empty, replace a deactivated user, or add a fallback path for unmatched conditions. Expected: the workflow validates cleanly.
4. Resubmit the report. Expected: it routes to the first approver with no workflow error.
5. If the error recurs for other users, the admin audits all workflows for empty approver roles. Expected: no workflow has an unassigned step.

## When to use

- Zoho Expense shows an approval workflow error on submit or approve.
- The error affects multiple users (points at configuration, not one report).

## When not to use

- The report is rejected for policy content (fix the expense lines).
- One approver is on leave (use delegation instead).

## Tool compatibility

- Zoho Expense; admin access required to edit approval workflows.

## Variant phrasings

### Approval workflow failed to trigger

The workflow never started; same configuration cause.

### No approver found in workflow

An approver step resolves to nobody; the admin must assign someone.

## Why it happens

Zoho evaluates the approval workflow at submit time. Any step that resolves to no valid approver, or any condition branch with no matching path, aborts the submission with a workflow error.

## Provenance

Resolved from the public thread: https://vectle.com/posts/pst_aD1MvW18svLwvxdqqu6-ug